pericynthionn.

Brit.

/ˌpɛrᵻˈsɪnθɪən/, U.S.

/ˌpɛrəˈsɪnθiɑn/

Origin: A borrowing from Greek, combined with an English element. Etymons: peri- prefix, Greek Κύνθιον.

Etymology: < peri- prefix + ancient Greek Κύνθιον (neuter of Κύνθιος (adjective) of or associated with Mount Cynthus < Κύνθος Mount Cynthus on Delos, the birthplace of Artemis, goddess frequently associated with the moon + -ιος , suffix forming adjectives; compare Cynthia n.), after perihelion n. Compare apocynthion n.

Astronautics.

= perilune n.

ΘΚΠ

society > travel > air or space travel > space flight > [noun] > a space shot or flight > course or trajectory of spacecraft > point in lunar orbit

pericynthion1959

perilune1960

1959 A. N. Spitz & F. Gaynor Dict. Astron. 295 Pericynthion, that point in the orbit of a moon rocket which is closest to the moon.

1969 Times 17 May 8/6 The descent engines of the L.M. will be fired..to propel it into an orbit in which it will swing around the moon in an elliptical orbit. At its nearest (pericynthion) it will be eight nautical miles from the surface.

1995 Pop. Sci. July 56/3 The rocket firing that would take place two hours after Apollo 13's pericynthion, or closest approach to the moon.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	pericynthion
释义	pericynthionn. Brit. /ˌpɛrᵻˈsɪnθɪən/, U.S. /ˌpɛrəˈsɪnθiɑn/ Origin: A borrowing from Greek, combined with an English element. Etymons: peri- prefix, Greek Κύνθιον. Etymology: < peri- prefix + ancient Greek Κύνθιον (neuter of Κύνθιος (adjective) of or associated with Mount Cynthus < Κύνθος Mount Cynthus on Delos, the birthplace of Artemis, goddess frequently associated with the moon + -ιος , suffix forming adjectives; compare Cynthia n.), after perihelion n. Compare apocynthion n. Astronautics. = perilune n. ΘΚΠ society > travel > air or space travel > space flight > [noun] > a space shot or flight > course or trajectory of spacecraft > point in lunar orbit pericynthion1959 perilune1960 1959 A. N. Spitz & F. Gaynor Dict. Astron. 295 Pericynthion, that point in the orbit of a moon rocket which is closest to the moon. 1969 Times 17 May 8/6 The descent engines of the L.M. will be fired..to propel it into an orbit in which it will swing around the moon in an elliptical orbit. At its nearest (pericynthion) it will be eight nautical miles from the surface. 1995 Pop. Sci. July 56/3 The rocket firing that would take place two hours after Apollo 13's pericynthion, or closest approach to the moon. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.1959
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